Sophie: htmlparser-1.6-5mdv2010.0 noarch

htmlparser-1.6-5mdv2010.0.noarch.rpm

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<div class="wikitext"><p><b>Reverse Html Rendering</b></p>
<p>In order to get back the html representation of a web page, you may use toHtml() recursively. Here's one way to get it:</p>
<pre>
import org.htmlparser.Parser;
import org.htmlparser.util.NodeIterator;
import org.htmlparser.util.ParserException;

public class ToHtmlDemo
{
    public static void main (String[] args) throws ParserException
    {
        Parser parser = new Parser ("http://urlIWantToParse.com");
        StringBuffer html = new StringBuffer (4096);
        for (NodeIterator i = parser.elements();i.hasMoreNodes();)
             html.append (i.nextNode().toHtml ());
        System.out.println (html);
    }
}</pre>
<p>Often, it might be desired to modify the html being reconstructed. In such a case, you must change the tag's attributes prior to calling toHtml().
For example, if the tag in question is a link tag, and you wish to modify the href, do this:</p>
<pre>
    linkTag.setLink ("http://newUrlString");
    linkTag.toHtml ();</pre>
<p>This is equivalent to:</p>
<pre>
    linkTag.setAttribute ("href", "http://newUrlString");
    linkTag.toHtml ();</pre>
<p>This latter would work on any tag, but few other tags have an HREF attribute according to the <a href="http://www.w3.org/TR/html4/" class="namedurl"><span style="white-space: nowrap"><img src="../themes/MacOSX/images/http.png" alt="http" class="linkicon" border="0" />HTML</span> specification</a>.
The <i>toHtml()</i> method applies to all nodes, not just tags. For tags it is basically a reconstruction of the tag using its attributes (at the atomic level) and its children (at the macro/composite level).</p>
<p>You can also change the name of the tag like so:</p>
<pre>
    tag.setTagName (newTagName);</pre>
<p>and there are numerous ways to add, remove or change the attributes of a tag. For example, to add or change the ID attribute to "EditArea" use:</p>
<pre>
    tag.setAttribute ("id", "EditArea", '"');</pre>
<p>Whole tags can be added and removed from the list of children held by each tag. For example, to add a &lt;P&gt; tag at the same level as another tag:</p>
<pre>
    newTag = new Tag ();
    newTag.setTagName ("P");
    tag.getParent ().getChildren ().add (newTag);</pre>
<p>Be careful, getChildren () may return null for an arbitrary tag.</p>
</div>


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